weltech.tw

https://weltech.tw· First analyzed 22 May 2026· Updated 22 May 2026

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weltech.tw

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.21.50.203

Site Location

🇹🇼 Taiwanvia tld

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

langston.ns.cloudflare.com.melinda.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.6 s10%

Speed Index

2.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.6 MB

38 requests

Image Optimization

WebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv7.0

cms

oxygen-is-not-a-themeCustom

Technology Stack

10 Technologies Detected

Libraries

Plugins

Frameworks

Other

AOS (Animate On Scroll)

CSS Frameworks

Fonts

CDN

Languages

SEO Analysis

C63/100

Meta Tags5/15

Content3/12

Headings3/8

Technical23/25

E-E-A-T7/7

Images3/7

Links2/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

weltech.twweltech.tw

威陞環境科技

碩博士團隊，專精環工、土木、化工、水資源、景觀、企管，提供多元專業服務。

Title Length6 chars

Recommended: 50-60 chars (~37px / 580px)

Description Length36 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (30/30) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

6 URLs

6 sub-sitemaps

robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

13/100

Poor

4 12 1

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F36/100

Bot Access

20/25

Machine Read.

3/25

Schema Data

6/25

Citation

7/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:2%

Words:121

Token eff.:Too Short

Sections/1K:115.7

Structured Data

6 JSON-LD

Person×1.3(min)WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary

Descriptive Headingsavg 1.1w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

AI readiness recommendation preview...

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Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

64/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

7/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

15/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

1/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•Accessibility recommendation preview...

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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

40/100

377 mg

CO₂e / view

3.6 MB

Page Weight

15%

Cleaner Than

New Visitor

431 mg

Returning (cached)

216 mg

Annual (10K/mo)

45.3 kg

Emission Segments

Data Center

19 mg

Network

111 mg

Device

248 mg

Resource Breakdown

JavaScript

41.1 KB

Images

86.9 KB

CSS

6.9 KB

Fonts

565.2 KB

HTML

19.3 KB

Other

2.9 MB

Green Hosting Verified

Cloudflare

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

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A+

Security Score

95%Excellent

Static / Informational

HTTPS

WAF

60d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

23.04.2026

Valid Until

22.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

weltech.tw*.weltech.tw

SHA-256 Fingerprint

9C:DB:87:2D:9E:27:FF:7E:B5:AE:4F:CB:7D:E2:29:6A:38:C3:66:EB...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 1 Hours(max-age=3600, must-revalidate)

cf-cache-status

DYNAMIC

cf-edge-cache

cache, platform=WordPress

cf-ray🇫🇷 Paris

9ffd8b8aaace4742-CDG

content-encoding

zstd

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (3)

aspmx.l.google.com

aspmx2.googlemail.com

alt1.aspmx.l.google.com

Domain Information

weltech.tw

Domain Age

13y 11m

Created

31.05.2012

Expires

31.05.2028

Last Updated

03.04.2024

Registrar

NET-CHINESE

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

71/100

Mobile Friendly1 breakpoint

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1.0

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Noto Sans TC + Open Sans

WCAG Partial

65/100

Readability

/30

24/30

16px · LH 1.60

Hierarchy

/20

6/20

WCAG

/25

15/25

1:1 min contrast

Performance

/25

20/25

2 fonts · 1 req

Heading Font

Noto Sans TC

Sans

Body Font

Open Sans

Sans16px

Contrast Ratio

1:1

7 issues

Reading Comfort

Dual Sans-Serif

left aligned

40px

24px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

✅ Lean font stack: 2 font families keeps load times fast.

GGoogle Fonts Buy on MyFontsFluid Type (rem)

Color Palette

9 unique colors

2.53:1 Fail Light

#888e86

Other· 20.6%

#dee0df

Other· 7.2%

#11120b

Primary· 36.900000000000006%

#242615

Secondary· 6.6%

#5b5e42

Secondary· 6.3%

#44472d

Secondary· 6%

#71775f

Secondary· 5.4%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

11 Resources

Scripts

Styles

Async

Defer

Top Script Sources

weltech.tw(3)

Website Identity

威陞環境科技

Corporation

碩博士團隊，專精環工、土木、化工、水資源、景觀、企管，提供多元專業服務。

weltech.tw/

13 years old

Location detected: 🇹🇼 Taiwanvia tld

NET-CHINESE📧 Google Workspacezh-TW

Sponsored

Last analyzed: 22 May 2026 at 17:30

Historical Analysis & Change Tracking